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Finding the Fourth Proportional to 29,647.86, 40,910.13 and 19,051.80

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Solution

The fourth proportional to 29,647.86, 40,910.13 and 19,051.80 is: 26,288.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,647.86 : 40,910.13 = 19,051.80 : x
  2. Step 2: Convert to fraction form
    29,647.86/40,910.13 = 19,051.80/x
  3. Step 3: Cross multiply
    29,647.86x = 40,910.13 × 19,051.80
  4. Step 4: Simplify right side
    29,647.86x = 779,411,614.73
  5. Step 5: Solve for x
    x = 779,411,614.73/29,647.86
  6. Step 6: Final answer
    x = 26,288.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.